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face-centered cubic metals

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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
... 1989 , p 95 – 102 10.1016/0921-5093(89)90090-7 16. Christ H.-J. , On the Orientation of Cyclic-Slip-Induced Intergranular Fatigue Cracks in Face-Centered Cubic Metals , Mater. Sci. Eng. A , Vol 117 ( No. 1–2 ), Sept 1989 , p L25 – L29 10.1016/0921-5093(89)90115-9 17...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006786
EISBN: 978-1-62708-295-2
..., a supposed nonembrittler may cause a failure. Fig. 1 Embrittlement and nonembrittlement couples in solid/liquid systems. hcp, hexagonal close-packed; bcc, body-centered cubic; fcc, face-centered cubic. Source: Ref 5 Metals that have been shown to cause liquid-metal-induced embrittlement, solid...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003540
EISBN: 978-1-62708-180-1
... metals, most of the applied plastic strain is concentrated in a few persistent slip bands, some of which develop into cracks with continued cycling. Use of coarse-grained structures causes strain homogenization and, therefore, IG fatigue cracking ( Ref 11 ). Cyclic deformation of face-centered cubic (fcc...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... 15 Fig. 24 General shifts in fracture mechanism fields for metallic and nonmetallic (ionic or covalent) bonding. (a) Face-centered cubic metals; cleavage at low temperatures does not occur as in the body-centered cubic (bcc). (b) Refractory bcc metals. (c) Alkali halides. (d) Refractory...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
..., specifically oriented grains tend to crack, leaving a shiny, faceted appearance easily differentiated from dull and fibrous, dimple-rupture features. Cleavage in a steel sample is shown in Fig. 4 . Face-centered-cubic (fcc) metals (for example, copper, aluminum, nickel, and austenitic steels) exhibit...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001775
EISBN: 978-1-62708-241-9
... of a face-centered cubic (fcc) nickel matrix, as shown in the optical micrograph in Fig. 6 . A small number of precipitates were also observed along some of the grain boundaries, as well as within the matrix. Metallographic analysis also showed intergranular crack propagation, as depicted in Fig. 7...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.9781627081801
EISBN: 978-1-62708-180-1
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003554
EISBN: 978-1-62708-180-1
... the origin. The crack path in both SMIE and LMIE is characteristic of the particular structural metal and embrittler but is usually intergranular, especially for body-centered cubic and face-centered cubic alloys. Secondary cracks and crack branching are often observed, and, in LMIE, these cracks...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001681
EISBN: 978-1-62708-234-1
... the Co must have been removed to the surface by a diffusion process. The Co-Cr alloy with 19 wt. % Fe will transform from the face-centered cubic structure to the hexagonal-close packed ε structure upon cooling below about 800°C [ 20 ]. It is expected that the phase change will occur during cycling...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001822
EISBN: 978-1-62708-180-1
..., as in the case of face-centered cubic (fcc) metals, the crack will propagate only when the liquid metal feeds the crack. In a notch-sensitive metal—for example, in a body-centered cubic (bcc) metal, such as iron—the nucleated crack may become unstable and propagate ahead of the liquid metal. In cases of LME...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... in Fig. 4 . Face-centered-cubic (fcc) metals (for example, copper, aluminum, nickel, and austenitic steels) exhibit the greatest ductility during rapid fracture and, in benign environments, do not normally fracture via cleavage. However, brittle cracking of fcc metals can occur under conditions...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
... also be elongated or equiaxed. These cases are discussed in more detail following a discussion of the effects of deformation twinning on cracking mechanisms and fracture-surface morphology. Face-centered cubic (fcc) materials generally do not cleave, as indicated in the article “Fracture Appearance...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003538
EISBN: 978-1-62708-180-1
... are discussed in more detail following a discussion of the effects of deformation twinning on cracking mechanisms and fracture surface morphology. The face-centered cubic (fcc) materials do not generally cleave, as indicated in the preceding article in this Volume, “Fracture Appearance and Mechanisms...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006776
EISBN: 978-1-62708-295-2
... of pure face-centered cubic metals such as copper. Fine protrusions and intrusions (peaks and troughs) of metal can form where these persistent slip bands intersect free surfaces (e.g., see Fig. 2 in “ Fatigue Failure in Metals ” in Fatigue and Fracture , Volume 19 of the ASM Handbook , 1996...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001609
EISBN: 978-1-62708-229-7
... susceptible to intergranular corrosion and stress-corrosion cracking. This effect is similar to what occurs in standard 18Cr-8Ni grades of austenitic, face-centered cubic stainless steel. However, carbide precipitation occurs much faster in ferritic stainless steel, due to the higher C contents and much lower...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
...). Figure 5 illustrates this temperature dependence schematically for polycrystalline materials that do not undergo a solid-state transformation. Two flow strengths are shown: one for a material that does not have a ductile-to-brittle transition in fracture behavior, such as metal with a face-centered...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
.... Two flow strengths are shown: one for a material that does not have a ductile-to-brittle transition in fracture behavior, such as metal with a face-centered cubic (fcc) crystal structure, and one for a body-centered cubic (bcc) material that exhibits a ductile-to-brittle transition. When designing...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... defined by one face perpendicular to x , a second face perpendicular to y , and the third perpendicular to x ′. The element is taken to have a unit thickness such that the area of each face can be defined by θ and the area of either the x or y face, as shown in Fig. 4(c) . The stress components...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003530
EISBN: 978-1-62708-180-1
... at an angle, θ, and new axes defined as x ′ and y ′ are in the direction defined by a rotation of the axes through the angle θ ( Fig. 4b ). A new stress element defined by the cut surface takes the shape of a triangle defined by one face perpendicular to x , a second face perpendicular to y...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
... or unmounted metal specimens A right-angle head, electric drill motor with attachments and materials for grinding and polishing selected spots on large parts or assemblies. It is also used for driving the grinding and polishing machine described in the previous item A portable microscope, with camera...